Explore our leading collection of certified synthetic oils engineered for modern high-load machinery and high-performance engines.
A technical whitepaper examining chemical compositions, shear-stability, and efficiency improvements in modern industrial gearboxes.
In modern industrial manufacturing and transportation sectors, heavy machinery is subjected to increasingly higher operating stresses. Conventional mineral gear oils are reaching their mechanical limits, particularly under extreme heat, high pressure, and heavy load conditions. As a leading manufacturer of synthetic gear oils, Shandong Longhai Lubrication Technology Development Co., Ltd. focuses on the synthesis of Polyalphaolefin (PAO), Polyalkylene Glycol (PAG), and high-grade ester base fluids coupled with state-of-the-art additive packages. This chemical optimization yields a synthetic gear oil that ensures superior oxidative stability and micropitting resistance.
Synthetically synthesized base oils offer significant advantages over mineral counterparts because they lack the natural impurities such as paraffinic waxes and sulfur compounds that lead to early fluid degradation. The absence of wax guarantees outstanding low-temperature fluidity, ensuring immediate lubrication during cold start-ups in sub-zero climates down to -45°C. At the opposite end of the spectrum, the high Viscosity Index (VI) of synthetic gear oils prevents viscosity thinning under intense operational heat, maintaining a robust elastohydrodynamic lubrication (EHL) film between gear teeth.
In critical components like industrial planetary gearboxes, wind turbine main drives, and heavy-duty worm gears, synthetic gear oils actively prevent micropitting—a microscopic fatigue phenomenon that eventually triggers macro-pitting and gear teeth failure. Using premium anti-wear (AW) and extreme pressure (EP) chemical additives, our synthetic gear oil reacts with metal surfaces to build a protective barrier that reduces friction coefficients, ensures smooth load transfers, and limits gear tooth wear even under sudden shock loading conditions.
Shandong Longhai Lubrication Technology Development Co., Ltd. was established in 2009 and is headquartered in Zibo, Shandong. It is a high-tech enterprise integrating R&D, production and sales. The company has been deeply involved in the lubricant industry for more than 15 years, has built a complete industrial chain system, and is committed to providing high-quality lubrication solutions for the global industrial and transportation fields.
As a reliable lubricant manufacturer in the industry, Longhai Technology owns its own brand "Century Longhai" and the international strategic cooperation brand British "A Ba" series of products. The products cover diesel engine oil, gasoline engine oil, gear oil, hydraulic transmission oil, anti-wear hydraulic oil, special engine oil for engineering machinery, special oil for natural gas, full synthetic oil, automotive urea solution, antifreeze, special engine oil for motorcycles, industrial oil, automatic transmission oil and many other lubricant varieties. The brand is insured by PICC China People's Insurance Company and quality insurance.
How our factory integrates technological innovation, capacity, and precision to deliver global competitive advantages.
In the global market, China has transitioned from a high-volume manufacturer to a high-precision, innovation-driven industrial powerhouse. Shandong Longhai Lubrication Technology exemplifies this paradigm shift. By allocating over 5% of our annual revenue directly into lubrication R&D, we continuously partner with major domestic universities and petrochemical research institutions to optimize synthetic formulations. Our 131-acre manufacturing facility utilizes cutting-edge blending technologies and fully automatic filling machinery that operate with a volume accuracy of 1‰-2‰. This high level of precision minimizes physical waste and guarantees product consistency from one batch to the next.
Furthermore, our automated packaging infrastructure increases overall filling speeds by 20% to 35%, ensuring high output during periods of high demand. For global industrial buyers, this translates directly to shorter lead times, consistent product delivery, and competitive bulk pricing. By controlling the entire manufacturing chain in Zibo—the manufacturing heartland of Shandong province—we enjoy unparalleled access to raw synthetic bases and chemical inputs. This logistics and sourcing network protects our international partners from supply-chain interruptions and volatile pricing shocks.
Utilizes PLC automated metering for precise formulation matching.
Maintains a strict filling precision of 1‰-2‰ across all formats.
Equipped with ASTM testing systems to inspect viscosity index, pour points, and foaming behavior.
Bespoke lubrication engineering addressing severe operational environments globally.
Different industrial fields face distinct challenges. We address these requirements with macro-industry solutions designed to extend gear and equipment lifespans:



How we customize packaging, specifications, and formulations to help international partners build premium brand equity.
Fully synthetic and semi-synthetic lubricant formulations tailored to vehicle/equipment requirements, climatic conditions or market positioning to meet international standards such as API/ACEA.
Supports small-scale trial production to large-scale production, covering engine oil, transmission oil, industrial lubricants and other full categories, filling specifications are flexible and optional.
Certified by ISO 9001, IATF 16949, etc., provide authoritative third-party test reports to ensure product performance and compliance.
We offer packaging design, label printing and technical documentation support to help you build a premium brand image.
A reliable path from technical inquiry to global product delivery.
Demand Analysis
Formula Development
Sample Testing
Production Delivery
After-Sales Support
Our quality system is verified by international standards and global automotive approvals.
The company has passed ISO-9001-2015 quality system certification, 14001 environmental management system certification, 18001 health management system certification. Automatic transmission Mercedes-Benz certification has laid the foundation for the healthy development of the company and the stability of product quality. The company strictly follows international standards and introduces foreign production processes and testing technologies to ensure that the products can still perform excellently under extreme working conditions, helping customers improve equipment efficiency and reduce maintenance costs.





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